Vincelestes

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Vincelestes
Temporal range: Barremian-Early Aptian
~130–123 Ma
Artist's restoration
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Clade: Prototribosphenida
Family: Vincelestidae
Bonaparte, 1986
Genus: Vincelestes
Bonaparte, 1986
Species:
V. neuquenianus
Binomial name
Vincelestes neuquenianus
Bonaparte, 1986

Vincelestes ("Vince's thief") is an extinct genus of mammal that lived in what is now South America during the Early Cretaceous. It is closely related to modern therian mammals as part of Cladotheria.

Description

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Vincelestes neuquenianus is the only species known to date. Specimens were found in La Amarga Formation of southern Neuquén Province, Argentina. The remains of only nine individuals were recovered from this site.[1]

The back teeth of Vincelestes were similar to those of therians in that they were capable of cutting and grinding. This enabled them to process food more efficiently.[2]

In one study on Mesozoic mammal mandibles, Vincelestes plots with herbivorous and omnivorous taxa.[3]

Phylogeny

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Although not the direct ancestor of therians, Vincelestes is important because it gives an idea of what the ancestor of both placental and marsupial mammals might have looked like, and also gives an indication of when these mammals may have originated.[4]

Some studies inversely recovered the genus as an australosphenidan,[5][6] although current thought places Vincelestes as sister to marsupials and placental mammals.[7][8][9]

References

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  1. ^ Guillermo W. Rougier , Agustín G. Martinelli , Analía M. Forasiepi, Mesozoic Mammals from South America and Their Forerunners, 2012
  2. ^ Guillermo W. Rougier , Agustín G. Martinelli , Analía M. Forasiepi, Mesozoic Mammals from South America and Their Forerunners, 2012
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  4. ^ Guillermo W. Rougier , Agustín G. Martinelli , Analía M. Forasiepi, Mesozoic Mammals from South America and Their Forerunners, 2012
  5. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
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  8. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  9. ^ Guillermo W. Rougier , Agustín G. Martinelli , Analía M. Forasiepi, Mesozoic Mammals from South America and Their Forerunners, 2012

Further reading

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